comme ca

<?php

class DataBase {


    function request($item) {

        $servername = "XXXXXXXXXXX";
        $username = "XXXXXXXXXXXX";
        $password = "XXXXXXXXXXXXX";
        $dbname = "XXXXXXXXXXX";

        // Create connection
        $conn = new mysqli($servername, $username, $password, $dbname);
        // Check connection
        if ($conn->connect_error) {
            die("Connection failed: " . $conn->connect_error);
            }

        $sql = "SELECT $item FROM francophonie
        ORDER BY RAND()
        LIMIT 1";

        $result = $conn->query($sql);

        return $result;


    }

}


?>